Offshore Renewables

Powering the Future of Offshore Renewables

With accelerating decarbonisation initiatives and rising electrification, tapping into offshore renewables plays a vital role in ensuring reliable energy supplies. However, building the electrical infrastructure necessary to withstand harsh offshore environments demands significant investment in  custom materials and intricate structural reinforcements – increasing overall project costs.

At Engineering Power Solutions (EPS), we have wide-ranging experience in advising and designing renewable developments. Our power system consultants strategic electrical consultations, enabling our clients to navigate the technical intricacies surrounding offshore wind and tidal energy projects.

A Wind Farm Offshore On A Clear Day
A graphic display offshore renewable energy assets underwater

Our Approach

Working with leading global manufacturers of cable systems and T&D products (ABB, Siemens, and GE), for over 11 years we have collectively built an extensive knowledge base and lessons learnt database for equipment located in harsh offshore environments. Our experience and specialist knowledge of High Voltage systems can assist developers in making informed decisions.

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HV Asset Manuals

The HV Asset Manual is the go-to document explaining how all the systems work showing parameter settings and technical data all in one document, referring to key drawings and documents located within the document management system. Typical structure is as follows:

Primary and Secondary Equipment

  • System location and nomenclature as per SLD
  • Brief technical description
  • Brief technical data sheet tables
  • Reference documents
  • Design technical specification
  • O&M Manual (s)
  • Technical Files (containing FAT and Commissioning Results)

Protection Equipment – Brief Technical Description

  • Relay Settings
  • Protection Philosophy
  • Thermal settings (transformers and SVC Plus equipment)

HV and LV Power System Modelling

  • Power System Reactive Power and Active Power Flow Studies
  • Reactive Power Flow Optimisation Studies
  • SVC (Static Var Compensation) modelling and optimisation
  • Protection Co-ordination Studies
  • Circuit Breaker and Protection Tripping Investigations
  • Protection Settings Checks

Failure Investigations

  • Cable and Termination Failure Investigations

Electrical Safety Management

We provide expert consultancy and advice services for blue chip organisations concerned with the safe management of risk associated with all electrical work activities. Typical services include:

  • Bespoke Electrical Safety Audits
  • Arc Flash Assessments
  • Arc Flash Awareness Training
  • Electrical Safety Rules
  • HV Switching Courses / Training

Asset Management

  • Protection Setting Schedules
  • Electrical Equipment TAG Numbering
  • Electrical Obsolescence Studies
  • Critical Spares Lists
  • Lessons Learnt

Specialist Grid Connection Consultancy Services:

  • Renewable energy conceptual designs to integrate the renewable energy system into the existing building/manufacturing plant’s electrical system.
  • Grid connection support for power generation systems for Low Voltage (415V), Medium Voltage (6.6kV and 11kV), and High Voltage from 33kV up to 132kV grid connections.
  • Grid connection application forms.
  • Transformer energisation studies.
  • Subsea cable specifications.
  • G99 Grid Code Compliance Studies
  • Energy efficiency calculations.
  • Feed in Tariff revenue calculations.
  • Soil resistivity testing.
  • Reactive and active power flow studies (kVAr and kW).
  • Earthing solutions for substations and power generation equipment.
  • Solution provider for onshore and offshore condition monitoring equipment.

Engineering & Design

Designing offshore wind projects entails various stages which are intended to enhance and perfect the overall power system design. This process aims to reduce project uncertainties by enhancing the functionality and efficiency of your electrical assets.

Due to the high capital expenditure costs associated with renewable generation technology, EPS can provide you with a cost-effective electrical design for your installation. Typical documentation EPS has provided to previous renewable energy installations includes:

  • Design & Installation of DTS cable monitoring systems.
  • Substation and plant layout drawings.
  • Electrical protection calculations for both LV and HV equipment.
  • Substation lighting and small power supplies.
  • Earthing and lightning conductor design.
  • High Voltage and Low Voltage equipment specifications.
  • Cable routing drawings.
  • Cable calculations for both low-voltage and high-voltage cable networks.
  • Bill of Materials.
  • Project capital cost estimates.

Specialist Consultancy

EPS’s Offshore Renewables Approach

Using electrical engineering software ETAP, ERACs, IPSA or DigSILENT, our electrical engineers can provide you with a study report for your power system.

Whether it’s a power system study for the entire wind farm or hydro-electrical distribution system, or a modification/ addition to the electrical system EPS can provide you with the following technical services:

Power System Modelling & Investigative Analysis

Typical Studies include:

  • Transformer Energisation Studies.
  • Load Flow Analysis Studies.
  • Short Circuit Studies.
  • Transient Motor Starting Studies.
  • Harmonic Analysis.
  • Protection Co-ordination.
  • Arc Flash Assessments and Switchgear Risk Assessments.

Additional Services

  • Attend meeting with the DNO (Distributed Network Operator), SSE, Scottish Hydro, Northern Powergrid, Western Power etc.
  • Provide solutions to grid connection issues.
  • Offshore and Onshore surveys.
  • Factory Acceptance Testing.
  • Mechanical and electrical thermal imaging reports for wind turbine machinery, gearboxes, braking systems, generator, electrical equipment (onshore and offshore).

Why Choose EPS?
EPS’s electrical engineering consultants collaborate with clients throughout all stages of the design development process. Following frameworks such as ISO 9001 quality management and ISO 45001 health and safety frameworks, we adhere to all applicable IEEE standards whilst keeping up-to-date on the latest industry initiatives.